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Plug directly into the P-330w and open up a browser. In the address bar type in 192.168.1.1 (or 192.168.10.1) and hit enter. The login will be username: admin password: 1234 If those don't work you'll need to reset the router to actually get back into the settings. Once you are logged in click on Wireless on the left side of the screen and then Security.
If your encryption is set to WEP, click on the "Set WEP" button to the right. The Key1 box is your wireless password. If the encryption is set to WPA then look down near the bottom of the page where it says WPA Pre-Shared Key. The box next to that is where you can type in the password. Retype a password that is 8 or more characters and click Save at the bottom.
Then you should be able to use that password on all your computers when connecting wirelessly.

o set the P-330W to forward applications to allowed ports, click ADVANCED and the Special Applications link. The screen appears as shown.

( from the manual )2.2 Accessing the P-330W Web Configurator1Make sure your P-330W hardware is properly connected and prepare your computer/computer network to connect to the P-330W (refer to the Quick Start Guide).2Launch your web browser.3Type "192.168.10.1" as the URL.4Type “admin” as the User Name5Type "1234" (default) as the password.6Click OK to login.You should now see the MAIN MENU screen)

No it will not work you cannot connect a router to another router wirelessly and it will most likely not be detecting each other, routers are built to transmit internet signals from modems if you have a router and a computer but you do not have your own internet connection that will not work conencting to another router you will need USB Wifi Card transmitter/reciever to be able to connect to your friends wireless internet.

but if your friend only has a modem you can lend him your router and get a USB wifi transmitter/reciever to be able to connect to your router that is conencted to your friends modem this will work but will not work if you and you friend will both have a router creating a network.

hi...
you need to go to the computer which is connected wired to the zyxel box,in the computer click on start,run,type in cmd,and hit enter,on that black box type in ipconfig,hit enter,you wil get a list of result check default gateway(eg of default gateway is 192.168.0.1)go to internet explorer page,in the address box type in the default gateway without http or www,it will open the zyxel page for you,it might prompt you to put in the user name and the password,if it does then donot put anythingin the name of username and put 1234 as password,in this page you will see an option that says wireless,click on wireless and then click on advanced,under you will see the wireless security option where you can go ahead and make you wireless connection secured.http://us.zyxel.com/upload/download_library/P330W_UG_V_1%201(5).pdf..this is a link for user guide u can download this to udnerstand other features that there in you router..
vedhick